Rapid DNA Testing Break-Even: $150K Monthly Revenue Target

Fixed costs $124.8K Monthly overhead

Contribution margin 83% After variable costs

Break-even revenue $150.4K Monthly target

Break-even timing Month 1 Launch month

Break-even calculator

Test whether monthly revenue covers variable expenses and fixed monthly costs for rapid DNA testing.

Lean Base Full

Monthly revenue Revenue is the pool that pays variable costs and fixed overhead. $ Low load High load Variable expenses These are direct costs tied to each case processed. $ Tight costs Higher costs

Money available to cover fixed costs $589,667 $706,188 revenue - $116,521 variable expenses

Margin ratio

84%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base break-even has to cover. $ Lean base Heavy base

Break-even chart Revenue Total costs

Which rapid DNA testing expenses are fixed, and which move with sample volume?

Cost classification

Break-even only works if fixed lab overhead is covered after per-test spend. In the first operating year, kits and reagents at 8% plus consumables at 4% reduce each revenue dollar before overhead is paid.

Expense	Cost	Break-Even Treatment	Common Mistake
Laboratory Facility Rent	Fixed	Include $25,000 per month in monthly overhead.	Treating lab space as scalable with samples.
Utilities Lab & Office	Fixed	Include $4,000 per month in overhead.	Ignoring the baseline lab load.
Secure IT Infrastructure & Software Licenses	Fixed	Include $6,000 per month in overhead.	Pushing secure storage into per-test spend only.
Laboratory Accreditation & Renewals	Semi-fixed	Include $3,000 per month, with step-ups as scale or compliance scope changes.	Excluding compliance from break-even.
Insurance General Liability & Professional Indemnity	Fixed	Include $2,500 per month in overhead.	Treating required coverage as optional.
DNA Testing Kits & Reagents	Variable	Subtract 8% of revenue before covering fixed overhead.	Using gross revenue as margin.
Laboratory Consumables	Variable	Subtract 4% of revenue as volume-linked test spend.	Forgetting supplies scale with testing volume.
Base Staffing Wages	Fixed	Include first-year planned salaries of about $75,833 per month.	Modeling core lab staff as fully variable.

How does break-even change from a lean launch to base and full-capacity rapid DNA testing?

Scenario table

Break-even shifts because revenue scales faster than variable costs while fixed overhead stays about $1,248K. Lean is basically at zero profit, but base and full capacity add a wider cushion as sample volume rises.

Planning cases only; one-time capex and financing sit outside recurring break-even.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch case	$1,504K	$256K	$1,248K	83%	$0K	At the threshold, so a small miss turns negative.
Base Year 1 plan	$3,368K	$573K	$1,248K	83%	$1,547K	Clear operating cushion, so the board case stays comfortably above break-even.
Full-capacity case	$5,110K	$869K	$1,248K	83%	$2,993K	Strong upside, but only if contract volume keeps the lab filled.

What breaks a rapid DNA lab’s break-even plan?

Stress test

Break-even is comfortable at the base case, but intake speed and cost drift can erase the cushion. A $10K monthly overhead bump or a move from 17% to 22% variable expense pushes the floor higher fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$1,504K	$1,864K cushion	Base case clears break-even by a wide margin.
Revenue shortfall	Monthly revenue falls to the $1,504K break-even floor.	$1,504K	$0 gap	Any further intake slowdown creates losses.
Fixed-cost increase	Monthly payroll or overhead rises by $10K.	$1,516K	$1,852K cushion	Extra overhead narrows the cushion but still clears break-even.
Margin pressure	Variable expenses rise from 17% to 22%.	$1,600K	$1,768K cushion	Higher reagent use and rework raise the floor.
Combined pressure	Variable expenses rise to 22% and fixed costs add $10K.	$1,613K	$1,755K cushion	Slow intake plus cost creep can close the gap fast.

What should you verify before signing the lab lease and buying rapid DNA equipment?

Founder checklist

Don’t commit to the full lab cost base until you can prove sample flow, price mix, and staffing can cover it. The model looks profitable on paper, but Month 6 cash still falls to about -$1.305M, so operating break-even and cash readiness are not the same thing.

1Demand Proof231 samples/mo

Verify you can hold at least 231 samples a month before you lock the full cost base, or the lease and instrument spend will outrun real demand.

2Launch Demand516 samples/mo

Only scale to the 516-sample target if agency, forensic, or identification work is real enough to fill the wider lab and support the bigger operating plan.

3Staffing Ramp8 FTEs / $71.7K/mo

Year 1 payroll runs about $71.7K a month across 8 FTEs, so confirm the workflow can handle that team before you add more hires.

4Overhead Load$49K/mo

Non-payroll fixed overhead is about $49K a month, and that rent, IT, accreditation, insurance, marketing, and admin load has to fit the sample pipeline.

5Unit Margin83% CM

Check that billable work stays in the $500 to $1,500 range, with 12% COGS plus 5% variable costs, so the 83% contribution margin still holds before payroll.

6Cash Cushion-$1.305M

Fund the Month 6 cash low of about -$1.305M separately from operating break-even, or a good margin story can still stall when startup cash runs thin.